Question 1
What is
least easily oxidized?
◦ Zn
◦ Mg
◦ Fe
◦ Al
Question 2
Aluminum requires relatively little protection from corrosion because
◦ the reduction potential for Al
3+/Al is very low.
◦ aluminum has little tendency to react with oxygen.
◦ the oxidation of aluminum produces a hard, relatively impenetrable film of Al
2O
3.
◦ aluminum is protected by cathodic protection.